clear your old database tables (10 posts)

In trying to install WordPress on my site, I uploaded the whole wordpress folder and then tried to delete the folder so it didn't have to say /wordpress. I've taken it completely out and installed the components directly into the root folder but now I get this error:

You appear to have already installed WordPress. To reinstall please clear your old database tables first.

I'm Using Host Zymic and I faced the same problem ... can anyone tell me which tables I must drop to reinstall wp ?
When I can't drop them because of the error :Error: Access denied for user '...' to database 'information_schema'

If WP is finding the db, but you are just getting the error that wordpress is already installed, then just open your wp-config.php file and about 2/3 of the way down, find the table prefix. It is probably set to wp_ Change it to something else...like wp1_ and save. This should prompt you to install when you visit your site url. You'll have a second set of tables in the db, but no big deal...won't hurt anything.

I deleted the tables and still getting "Error establishing a database connection"
Tried to uninstall all files and re-install wordpress.
Went to wordpress/wp-admin/install.php
Same error
Went to wordpress/wp-admin/index.php
Same error.